bryant



@atten tang atrat @titre CHARLES R. BRYANT, 0E FRALTHFORT, NEW YQRK, ASSGNOR T CALVN EATN, 0F YVEBSTER, NEW YRK.

Lettere Patent No. 52,932, dated VIarcL 19, 1867.

IMPROVEMENT IN EXTENSIGN LADDBRS.

TO ALL WHOMv ET MAY OONCERN:

Be it known that I, C. R. BRYANT, of Frankfort, in the county of Herkimer, andState of New York, Ahave invented a new and useful Improvement in the Arrangement of the Ropes of Extension Ladders and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had` to the accompanying drawing, making part of thisvspecitication, in which the figure is a plan of the two sections of the ladder, the top onc being run nearly up, and showing theV manner of attaching and winding the elevating and the retraoting ropes.

. This invention relates to that class called extension ladders, and its object is te permit the ropes to be used slack, so as to prevent their straining the parts by their shrinking when they happen to get wet; and it consiets in attaching rigidly the end ot' the elevating and theretracting ropes to the windlass-shaft, near the said rails, and making the elevating rope nearly twice as longr as the upper section of the ladder, so as to permit it to bc run clear down before it is all unwound from the windlass. I

To enable others to make and use my invention I will describeits construction and operation.

-I construct the sections A and B of' the ladder the same ns in my former patent of March 7, 1865. lhere may be a pulley, a, used on the upper round ofthe lower section A., similar to the former case, or, which has been found to answer every purpose, apiece of sole leather, nailed around that round, may be substituted for the pulley. The staple s may be used in either case to keep the rope in position at that point. The manner of'applying the rope heretofore has been to tie it to the next to the bottom round b of the upper section B, and to run it over the pulley a, two or three times around the windlass, andbnck to the round b. I run section B up as far as it can be allowed to go, and tie the retractin-g rope C to the round b of that section, and the other end is tied to a pin or staple in the windlass w, next to `the side rail, as shown. The windlass is then turned backward until the round Z1 ot` the extension or section B is brought down opposite the windlass. One end of the rope D is then fastened to the opposite end of the windlass, and the other carried up through the sta-ple s of the round and down to the lower round g of section B.

` In this arrangement, however slack the rope may be, an extra turn or two of the Windlass will take it up, and then it is sure to operate the extension. The rope should be applied quite slack, to allow for the contrae tion in length when it happens to get Wet, and thereby avoid breaking the round d or straining itself. Any suitable automatic or other hook may be used on this ladder.

What I claim as my invention, and desire to secure by Letters Patent, is

In combination with the extension ladder A and B, the rope D, and retracting rope C, arranged and operating substantially in the manner shown and described, and for the purposes set forth.

CHARLES R. BRYANT.

Witnesses:

ASAHEL TODD, Jr., ALONZO G. Mynns. 

